Title 35 › Part PART III— - PATENTS AND PROTECTION OF PATENT RIGHTS › Chapter CHAPTER 32— - POST-GRANT REVIEW › § 327
Both the petitioner and the patent owner can ask the Patent Office to end a post‑grant review for that petitioner, unless the Office already decided the case on the merits. If the review ends this way, no estoppel under section 325(e) will apply to the petitioner or to the petitioner’s real party in interest or privy because of that filing. If no petitioner remains, the Office can end the review or go to a final written decision under section 328(a). Any deal between the patent owner and a petitioner to end the review must be written and filed with the Patent Office before the review ends. If a party asks, the agreement must be treated as business confidential, kept separate from the patent file, and shown only to federal agencies on written request or to others who show good cause.
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Patents — Source: USLM XML via OLRC
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Reference
Citation
35 U.S.C. § 327
Title 35 — Patents
Last Updated
Apr 6, 2026
Release point: 119-73